proc_kpagecount(5)

✨ NAME ✨

/proc/kpagecount — the count of mappings of physical pages, bestie 💖

(also FYI this whole page lives in section 5, the File Formats Manual, so you already know it's giving "kernel filesystem tea" energy 🫖)

---

🌸 DESCRIPTION 🌸

💅 /proc/kpagecount (since Linux 2.6.25)

Okay so picture this: this file is literally a big array, and it holds a 64-bit count of how many times each physical page frame is mapped. That's it. That's the whole vibe. One count per physical page frame, and you find the one you want by indexing with the page frame number 🔥

If you're like "wait, page frame number? what is she talking about", go read the discussion of /proc/pid/pagemap — it's all explained there, iykyk ✨

🫶 Heads up bestie: /proc/kpagecount only shows up if the CONFIG_PROC_PAGE_MONITOR kernel configuration option is enabled. If it's not enabled, the file is just… not there. No file, no counts, no drama, just an empty seat at the table 😭

---

👑 SEE ALSO 👑

• proc(5) — the mothership, go read her too 💜

---

and that's the whole page, periodt 💅✨

this little love letter was brought to you by Linux man-pages 6.20, dated 2026-02-08 — she's iconic, she's timeless, and she ate 🌈⭐🎀